package com.zzyl.nursing.service.impl;

import cn.hutool.core.util.ObjectUtil;
import cn.hutool.http.HttpUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.zzyl.nursing.service.WechatService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;

@Service
public class WechatServiceImpl implements WechatService {


    // 登录
    private static final String REQUEST_URL = "https://api.weixin.qq.com/sns/jscode2session?grant_type=authorization_code";

    // 获取token
    private static final String TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";

    // 获取手机号
    private static final String PHONE_REQUEST_URL = "https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=";


    @Value("${wechat.appId}")
    private String appid;

    @Value("${wechat.appSecret}")
    private String secret;

    /**
     * 获取openid
     * @param code
     * @return
     */
    @Override
    public String getOpenid(String code) {
        Map<String, Object> paramMap = new HashMap<>();
        paramMap.put("appid",appid);
        paramMap.put("secret",secret);
        paramMap.put("js_code",code);

        String s = HttpUtil.get(REQUEST_URL, paramMap);
        JSONObject jsonObject = JSONUtil.parseObj(s);
        Object errcode = jsonObject.get("errcode");
        if(ObjectUtil.isNotEmpty(errcode)){
            throw new RuntimeException(String.valueOf(jsonObject.get("errmsg")));
        }
        String openid =  jsonObject.getStr("openid");

        return openid;
    }


    /**
     * 获取手机号
     * @param phoneCode
     * @return
     */

    @Override
    public String getPhone(String phoneCode) {
        String accessToken = getAccessToken();
        Map<String, Object> paramMap = new HashMap<>();
        paramMap.put("code",phoneCode);
        String s = HttpUtil.post(PHONE_REQUEST_URL+ accessToken, JSONUtil.toJsonStr(paramMap));

        JSONObject jsonObject = JSONUtil.parseObj(s);
        if(jsonObject.getInt("errcode")!= 0){
            throw new RuntimeException(jsonObject.getStr("errmsg"));
        }
        String phoneInfo = jsonObject.getStr("phone_info");
        JSONObject jsonObject1 = JSONUtil.parseObj(phoneInfo);
        String phoneNumber = jsonObject1.getStr("phoneNumber");
        return phoneNumber;
    }

    @Override
    public String getAccessToken() {
        Map<String, Object> paramMap = new HashMap<>();
        paramMap.put("appid",appid);
        paramMap.put("secret",secret);

        String s = HttpUtil.get(TOKEN_URL, paramMap);
        JSONObject jsonObject = JSONUtil.parseObj(s);
        String accessToken = jsonObject.getStr("access_token");
        return accessToken;
    }
}
